参数资料
型号: ISLA222P13IRZ
厂商: Intersil
文件页数: 5/33页
文件大小: 0K
描述: IC ADC 12BIT SRL/SPI 72QFN
标准包装: 1
系列: FemtoCharge™
位数: 12
采样率(每秒): 130M
数据接口: 串行,SPI?
转换器数目: 2
功率耗散(最大): 697mW
电压电源: 模拟和数字
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 72-VFQFN 裸露焊盘
供应商设备封装: 72-QFN(10x10)
包装: 托盘
输入数目和类型: *
ISLA222P
13
FN7853.1
June 17, 2011
SPI INTERFACE (Notes 11, 12)
SCLK Period
tCLK
Write Operation
7
cycles
tCLK
Read Operation
16
cycles
CSB
↓ to SCLK↑ Setup Time
tS
Read or Write
28
cycles
CSB
↑ after SCLK↑ Hold Time
tH
Write
5
cycles
CSB
↑ after SCLKHold Time
tHR
Read
16
cycles
Data Valid to SCLK
↑ Setup Time
tDS
Write
6
cycles
Data Valid after SCLK
↑ Hold Time
tDH
Read or Write
4
cycles
Data Valid after SCLK
Time
tDVR
Read
5
cycles
NOTES:
11. SPI Interface timing is directly proportional to the ADC sample period (tS). Values in Switching Specifications table reflect multiples of a 4ns sample
period, and must be scaled proportionally for lower sample rates. ADC sample clock must be running for SPI communication.
12. The SPI may operate asynchronously with respect to the ADC sample clock.
13. The relative propagation delay is the difference in propagation time between any two devices that are matched in temperature and voltage, and is
specified over the full operating temperature and voltage range.
Switching Specifications Boldface limits apply over the operating temperature range, -40°C to +85°C. (Continued)
PARAMETER
SYMBOL
CONDITION
MIN
(Note 5)
TYP
MAX
(Note 5)
UNITS
Typical Performance Curves All typical performance characteristics apply under the following conditions unless
otherwise noted: AVDD = OVDD = 1.8V, TA = +25°C, AIN =-dBFS, fIN = 105MHz, fSAMPLE = 250MSPS.
FIGURE 3. SNR AND SFDR vs fIN
FIGURE 4. HD2 AND HD3 vs fIN
FIGURE 5. SNR AND SFDR vs AIN
FIGURE 6. HD2 AND HD3 vs AIN
60
65
70
75
80
85
90
0
100
200
300
400
500
600
INPUT FREQUENCY (MHz)
S
N
R
(dBFS)
AND
S
F
DR
(dBc)
SNR AT 250MSPS
SFDR AT 250MSPS
SFDR AT 130MSPS
SNR AT 130MSPS
-105
-100
-95
-90
-85
-80
-75
-70
-65
0
100
200
300
400
500
600
INPUT FREQUENCY (MHz)
HD2
A
ND
HD3
MA
GNITUDE
(dBc)
HD2 AT 250MSPS
HD3 AT 130MSPS
HD2 AT 130MSPS
HD3 AT 250MSPS
10
20
30
40
50
60
70
80
90
100
-60
-50
-40
-30
-20
-10
0
INPUT AMPLITUDE (dBFS)
SNR
AND
S
F
DR
SFDR (dBfs)
SFDR (dBc)
SNR (dBc)
SNR (dBfs)
-110
-100
-90
-80
-70
-60
-50
-40
-30
-60
-50
-40
-30
-20
-10
0
INPUT AMPLITUDE (dBFS)
HD3 (dBc)
HD2 (dBc)
HD2 (dBFS)
HD3 (dBFS)
HD2
A
ND
HD3
M
A
GNITUDE
(dBc)
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